Gas range



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GAS RANGE :....zzzvf Filed Oct. 2, 1929 u ononooo a annoso s o A. u e

- April 2o, 1937.

April zo, 1937. c. E. METHUDY 2,077,890

v l GAS RANGE Filed Oct. 2, 1929 2 Sheets-Sheet 2 lig-@- 'Patented Apr.20,l 1937 UNITED STATES GAS RANGE can E. Methudy, st. Louis, M0.,assignnf; by mesne assignments, to The Cleveland Trust Company,Cleveland, Ohio, a corporationof Ohio Application october z, lozaseriaiNo. 396,724

1 Claim.

This invention relates to gas ranges.

An object of the invention is to provide ai construction and arrangementin a gas range whereby the gas from the gas supply pipe is conducted tothe gas manifold of the range through a valve which controls passage ofgas from the supply pipe to a pilot. light device and also to themanifold, which supplies gas to the several burners of the gas range.

Another object of the invention is to provide the construction andarrangement of the type and character mentioned having thermostaticmembers in connection with and controlling the valve that controls thepassage of gas to the pilot light burner and to the manifold wherebysaid valve will be automatically closed when the flame at the pilotlight burner becomes extinguished and the thermostatic device becomesunheated.

VAnother object of the invention is to provide a gas range embodying'theimproved construction and arrangement of parts hereindisclosed,reference being made to the accompanying drawings, in which-' Fig. 1 visa plan view of a portion of the gas range showing a cluster of gasburners and a pilot light burner and valve therefor controlling thepassage of gas to the `manifold of the range. Fig. 2 is an enlargedvertical sectional view of the pilot light device and valveapproximately on the line -2-2 of Fig. 1.

In the embodiment of the invention shown, a cluster of gas burners I isassembled in appropriate relationship within a burner box frame 2. Theoven of the range is equipped with a gas burner 3 having a gas inletdevice d. The

burners I have gas inlet devices 5.

The main gas supply pipe E is mounted in the support 1 in connectionwith the burner box frame and has a pipe extension 8 extending forlwardly toward the center of the cluster of Aburners Iy to connectionwith a valve housing which encloses a valve that controls passage of gasto the pilot light burner and also controlsv gas to the gas inlet device4 leading to the oven burner 3.

A housing I4 for enclosing the flame of the .pilot light burner islocated near the center of the clusterof burners I and has tubular arms5 I5 open throughout their length and extending toward and terminatingadjacent to the burners I, so that gas being discharged from saidburners I will enter the tubes I5 and be conducted thereby to thehousing l4- and therein ignited by the 10 pilot light flame. As a resultof the ignition of the gas in the housing I4 and tubes I5, fa pressureWave of combustion 4is formed in said tubes I5 with the result that thegas being discharged from the tubes of the burners I is 15 ignited. Atube I6 leads to the burner 3 for the same purpose; and a tube I1 may beprovided for a special burner Ia.

'Ihe pipe 8 has communication with the pipe II through a valve housing.The valve housing 20 comprises a bottom wall I8 and a cylindrical wallI9 rising from the wall I8. The walls I8 and I9 form an enclosure orhousing having at one end a tubular internally threaded lateralextension 20 forming a gas receiving chamber 25 2i and screwed on to theend-of the pipe 8. The opposite side of the valve housing has alaterally extended internally threaded tubular portion 22 i into whichthe end of the pipe I I is screwed.

Within thepvalve housing an annular wall 23 30 rises from integral unionwith the bottom wall I8 .and encloses a. space 24 to which gas isadmitted from the receiving chamber 2l .through an inlet 25. The wall I9has adownward extension 26 curving to integral union with the upperportion 35 of the wally 23, so that it is impossible for the gas to passfrom the receiving chamber 2| otherwise f than through the port 25 andthrough the enff closed space 24, and thence upwardly across the valveseat 21 on the upper edge of the wall 23. 40

A valve 28 is attached to a support 29 mounted and guided in the spaceformed by the wall I9 and is movable from and to position on the valveseat 21. When the valve 28 is seated on the valve seat 21 it isimpossible for gas to pass 45 from the pipe 8 to the pipe I I; and whenthe valve 28 is raised from the valve seat 21 the gas may freely passfrom the pipe 8 to the pipe I I and thence to the manifold 9. Aretractile spring actuator 30 is connected with the projection 3| 50from the valve support 29 and with a rigid member 32 and operates toclose the Valve.

When the valve 28 is raised and held away from the valve seat 21 the gasmay pass -around the support 29 into the chamber 33 enclosed by the 55wall I9 above the support 29. A leak proof construction is provided,comprising'a diaphragm 34 having its outer edge clamped in connectionwith the wall i9 by a clamp 35. A burner jet tube 36 extends for slidingmovements in a boss 31 in connection with the clamp 35 and opens intothe chamber 33 through a tting 38 having ports 39 therein. from thechamber 33 to the tubular burner member 36 so that gas may pass fromsaid chamber 33 to the burner tip 40. A thermostatic member 4I isattached. to the burner tube 36 and is arranged to be engaged on theshoulder 42 in connection with the boss 31 when the burner tube 36 israised to open the valve 28. The fitting 38 has swivel connection 43with the valve support 29 so that said valve support will be operated bythe tube 36, and vice versa. Thus, when the tube 36 is moved, which maybe conveniently done by manually engaging a projection 44, the valve 28may be opened and the thermostatic device 4I will engage itslower endupon the shoulder 42.

This will permit gas to pass to the burner tip and also outwardlythrough gas outlet openings 45. When this gas is ignitedthe'thermostatic device 4I becomes heated and moves outwardly away fromand out of engagement with the shoulder 42 permitting the spring 30 todraw the valve 28 toward closed position. f

Another thermostatic device 46 is provided in connection with the burnertube 36 and is of shorter length than the thermostatic device 4I and isarranged to operate oppositely. That is to say, when the thermostaticdevice 46 becomes heated it bends inwardly to position to engage uponthe shoulder 42. And when the thermostatic device 46 becomes cooled itmoves and bends outwardly out of engagement with the shoulder 42.

Accordingly, the operation is in this manner: The valve 24 is opened bymanually engaging the projection 44 and moving the tube 36 upwardly. Thetube 36 moves the valve 28 to open position. Gas then passesinto thechamber 33 and thence These ports 39 form communication to the burnertip 40 and gas outlets 45. When the tube 36 is moved upwardly the lowerend of the thermostatic device 4| snaps over the shoulder 42 and holdsthe tube 36 in its uppermost position, and the gas passing through theburner tip 40 and through the gas outlet openings 45 is ignited. Boththermostatic devices 4I and 46 are, therefore, heated, with the resultthat the thermostatic device 4l is moved out of engagement with theshoulder 42 and the spring 30 then acts to move the valve 28 and otherconnected parts downwardly until stopped by engagement of thethermostatic device 46 upon the shoulder 42. In this way thevalve willbe held open until the ames at the openings 45 become extinguished andthe thermostatic device 46 becomes cooled. When the thermostatic device46 becomes cooled it bends and moves outwardly out of engagement withthe shoulder 42; and then the .spring 30 acts quickly to close the valve28 and thereby prevent passage of any gas to the manifold 8 or throughthe pilot light device.

From the ioregoing it is apparent that my invention obtains all of itsintended objects and purposes efficiently and satisfactorily. Theconstruction and arrangement may be varied widely within the scope ofequivalent limits without departure from the nature and principle of theinvention. I do not restrict myself unessentially but what I claim anddesire to secure by Letters Patent is:

In combination, a gas range having a pluralit of burners, a pilot lightcasing, tubes branching from said pilot light casing to each of saidburners, said pilot light casing and said tubes forming an integrated,rigid, removable structure normally supported by said burners, a pilotburner separate from said pilot light casing and unattached thereto,said pilot burn'er being constructed and

